TITLE: GCN CIRCULAR NUMBER: 38466 SUBJECT: EP241206a: BOOTES Global Network optical limits DATE: 24/12/08 10:31:29 GMT FROM: Alberto Castro-Tirado at Inst.de Astro. de Andalucia ajct@iaa.es
D.-R. Xiong (Yunnan Observatories of CAS, YNAO), I. Perez-Garcia, E. Fernandez-Garcia, A. J. Castro-Tirado, S.-Y. Wu, M. D. Caballero-Garcia, R. Sanchez-Ramirez, S. Guziy, G. Garcia-Segura (IAA-CSIC), Y.-D. Hu (INAF-OAB), C. Perez del Pulgar, A. Castellon, I. Carrasco (Univ. de Malaga), Y.-F. Fan, J.-M. Bai, C.-J. Wang, Y.-X. Xin, X.-H. Zhao (YNAO), S. Jeong (ADD, Daejeon) and D. Hiriart and W. H. Lee (UNAM), on behalf of a larger collaboration, report:
Following the detection of EP241206a by the Einstein Probe (Yin et al., GCNC 38457) we triggered our 0.6m BOOTES-4/MET robotic telescope at Lijiang Astronomical Observatory (China) to follow-up this fast X-ray transient starting on Dec. 7 at 13:30 UT (~ 21.1 h after trigger time). No optical afterglow within the EP/WXT error box is detected in the co-added image (15 x 60 s, clear filter) down to 19.2 mag. Later epoch observations were obtained on Dec. 8 at 06:41 UT with the 0.6m BOOTES-5/JGT robotic telescope at San Pedro Martir Astronomical Observatory (Mexico). The resulting co-added frame (10 x 60s, clear filter) imposed a 20.3 mag limiting magnitude.
We thank the staff at both Lijiang and San Pedro Martir observatories for their excellent support.
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